The software is based on STM32Cube technology and expands STM32Cube based packages. It is built on top of STM32Cube software technology to ease portability across different STM32 microcontrollers.
The software comes with sample implementations of the drivers running on the X-NUCLEO-NFC04A1 expansion board plugged on top of a NUCLEO-F401RE, NUCLEO-L053R8 or NUCLEO-L476RG board.

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The X-CUBE-VS4A Expansion Package consists of a set of libraries and application examples for STM32F7 Series microcontrollers acting as Alexa-enabled devices.
It runs on the 32F769IDISCOVERY board, which provides a native Ethernet interface.